From Dark and Darker Wiki

Loot Table
Name Category Rarity Luck Grade Item Count Chance
Consumable 2 - Poor 1 1 40.0%
Consumable 3 - Common 2 1 15.0%
Consumable 4 - Uncommon 3 1 4.9%
Consumable 5 - Rare 4 1 0.1%